| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| library test.relation_assignable; |
| |
| import "dart:mirrors"; |
| |
| import "package:expect/expect.dart"; |
| |
| class Superclass {} |
| |
| class Subclass1 extends Superclass {} |
| |
| class Subclass2 extends Superclass {} |
| |
| typedef bool NumberPredicate(num x); |
| typedef bool IntegerPredicate(int x); |
| typedef bool DoublePredicate(double x); |
| |
| typedef num NumberGenerator(); |
| typedef int IntegerGenerator(); |
| typedef double DoubleGenerator(); |
| |
| class A<T> {} |
| |
| class B<T> extends A<T> {} |
| |
| class C<T extends num> {} |
| |
| test(MirrorSystem mirrors) { |
| LibraryMirror coreLibrary = mirrors.findLibrary(#dart.core); |
| LibraryMirror thisLibrary = mirrors.findLibrary(#test.relation_assignable); |
| |
| // Classes. |
| TypeMirror Super = thisLibrary.declarations[#Superclass] as TypeMirror; |
| TypeMirror Sub1 = thisLibrary.declarations[#Subclass1] as TypeMirror; |
| TypeMirror Sub2 = thisLibrary.declarations[#Subclass2] as TypeMirror; |
| TypeMirror Obj = coreLibrary.declarations[#Object] as TypeMirror; |
| TypeMirror Nul = coreLibrary.declarations[#Null] as TypeMirror; |
| |
| Expect.isTrue(Obj.isAssignableTo(Obj)); |
| Expect.isTrue(Super.isAssignableTo(Super)); |
| Expect.isTrue(Sub1.isAssignableTo(Sub1)); |
| Expect.isTrue(Sub2.isAssignableTo(Sub2)); |
| Expect.isTrue(Nul.isAssignableTo(Nul)); |
| |
| Expect.isTrue(Sub1.isAssignableTo(Super)); |
| Expect.isTrue(Super.isAssignableTo(Sub1)); |
| |
| Expect.isTrue(Sub2.isAssignableTo(Super)); |
| Expect.isTrue(Super.isAssignableTo(Sub2)); |
| |
| Expect.isFalse(Sub2.isAssignableTo(Sub1)); |
| Expect.isFalse(Sub1.isAssignableTo(Sub2)); |
| |
| Expect.isTrue(Sub1.isAssignableTo(Obj)); |
| Expect.isTrue(Obj.isAssignableTo(Sub1)); |
| |
| Expect.isTrue(Sub2.isAssignableTo(Obj)); |
| Expect.isTrue(Obj.isAssignableTo(Sub2)); |
| |
| Expect.isTrue(Super.isAssignableTo(Obj)); |
| Expect.isTrue(Obj.isAssignableTo(Super)); |
| |
| Expect.isTrue(Nul.isAssignableTo(Obj)); |
| Expect.isTrue(Obj.isAssignableTo(Nul)); |
| Expect.isTrue(Nul.isAssignableTo(Super)); // Null type is bottom type. |
| Expect.isTrue(Super.isAssignableTo(Nul)); |
| |
| // Function typedef - argument type. |
| TypeMirror Func = coreLibrary.declarations[#Function] as TypeMirror; |
| TypedefMirror NumPred = |
| thisLibrary.declarations[#NumberPredicate] as TypedefMirror; |
| TypedefMirror IntPred = |
| thisLibrary.declarations[#IntegerPredicate] as TypedefMirror; |
| TypedefMirror DubPred = |
| thisLibrary.declarations[#DoublePredicate] as TypedefMirror; |
| |
| Expect.isTrue(Func.isAssignableTo(Func)); |
| Expect.isTrue(NumPred.isAssignableTo(NumPred)); |
| Expect.isTrue(IntPred.isAssignableTo(IntPred)); |
| Expect.isTrue(DubPred.isAssignableTo(DubPred)); |
| |
| Expect.isTrue(NumPred.isAssignableTo(Func)); |
| Expect.isTrue(NumPred.isAssignableTo(IntPred)); |
| Expect.isTrue(NumPred.isAssignableTo(DubPred)); |
| |
| Expect.isTrue(IntPred.isAssignableTo(Func)); |
| Expect.isTrue(IntPred.isAssignableTo(NumPred)); |
| Expect.isFalse(IntPred.isAssignableTo(DubPred)); |
| |
| Expect.isTrue(DubPred.isAssignableTo(Func)); |
| Expect.isTrue(DubPred.isAssignableTo(NumPred)); |
| Expect.isFalse(DubPred.isAssignableTo(IntPred)); |
| |
| Expect.isTrue(Func.isAssignableTo(Obj)); |
| Expect.isTrue(NumPred.isAssignableTo(Obj)); |
| Expect.isTrue(IntPred.isAssignableTo(Obj)); |
| Expect.isTrue(DubPred.isAssignableTo(Obj)); |
| Expect.isTrue(Obj.isAssignableTo(Func)); |
| Expect.isTrue(Obj.isAssignableTo(NumPred)); |
| Expect.isTrue(Obj.isAssignableTo(IntPred)); |
| Expect.isTrue(Obj.isAssignableTo(DubPred)); |
| |
| // Function typedef - return type. |
| TypedefMirror NumGen = |
| thisLibrary.declarations[#NumberGenerator] as TypedefMirror; |
| TypedefMirror IntGen = |
| thisLibrary.declarations[#IntegerGenerator] as TypedefMirror; |
| TypedefMirror DubGen = |
| thisLibrary.declarations[#DoubleGenerator] as TypedefMirror; |
| |
| Expect.isTrue(NumGen.isAssignableTo(NumGen)); |
| Expect.isTrue(IntGen.isAssignableTo(IntGen)); |
| Expect.isTrue(DubGen.isAssignableTo(DubGen)); |
| |
| Expect.isTrue(NumGen.isAssignableTo(Func)); |
| Expect.isTrue(NumGen.isAssignableTo(IntGen)); |
| Expect.isTrue(NumGen.isAssignableTo(DubGen)); |
| |
| Expect.isTrue(IntGen.isAssignableTo(Func)); |
| Expect.isTrue(IntGen.isAssignableTo(NumGen)); |
| Expect.isFalse(IntGen.isAssignableTo(DubGen)); |
| |
| Expect.isTrue(DubGen.isAssignableTo(Func)); |
| Expect.isTrue(DubGen.isAssignableTo(NumGen)); |
| Expect.isFalse(DubGen.isAssignableTo(IntGen)); |
| |
| Expect.isTrue(Func.isAssignableTo(Obj)); |
| Expect.isTrue(NumGen.isAssignableTo(Obj)); |
| Expect.isTrue(IntGen.isAssignableTo(Obj)); |
| Expect.isTrue(DubGen.isAssignableTo(Obj)); |
| Expect.isTrue(Obj.isAssignableTo(Func)); |
| Expect.isTrue(Obj.isAssignableTo(NumGen)); |
| Expect.isTrue(Obj.isAssignableTo(IntGen)); |
| Expect.isTrue(Obj.isAssignableTo(DubGen)); |
| |
| // Function - argument type. |
| TypeMirror NumPredRef = NumPred.referent; |
| TypeMirror IntPredRef = IntPred.referent; |
| TypeMirror DubPredRef = DubPred.referent; |
| |
| Expect.isTrue(Func.isAssignableTo(Func)); |
| Expect.isTrue(NumPredRef.isAssignableTo(NumPredRef)); |
| Expect.isTrue(IntPredRef.isAssignableTo(IntPredRef)); |
| Expect.isTrue(DubPredRef.isAssignableTo(DubPredRef)); |
| |
| Expect.isTrue(NumPredRef.isAssignableTo(Func)); |
| Expect.isTrue(NumPredRef.isAssignableTo(IntPredRef)); |
| Expect.isTrue(NumPredRef.isAssignableTo(DubPredRef)); |
| |
| Expect.isTrue(IntPredRef.isAssignableTo(Func)); |
| Expect.isTrue(IntPredRef.isAssignableTo(NumPredRef)); |
| Expect.isFalse(IntPredRef.isAssignableTo(DubPredRef)); |
| |
| Expect.isTrue(DubPredRef.isAssignableTo(Func)); |
| Expect.isTrue(DubPredRef.isAssignableTo(NumPredRef)); |
| Expect.isFalse(DubPredRef.isAssignableTo(IntPredRef)); |
| |
| Expect.isTrue(Func.isAssignableTo(Obj)); |
| Expect.isTrue(NumPredRef.isAssignableTo(Obj)); |
| Expect.isTrue(IntPredRef.isAssignableTo(Obj)); |
| Expect.isTrue(DubPredRef.isAssignableTo(Obj)); |
| Expect.isTrue(Obj.isAssignableTo(Func)); |
| Expect.isTrue(Obj.isAssignableTo(NumPredRef)); |
| Expect.isTrue(Obj.isAssignableTo(IntPredRef)); |
| Expect.isTrue(Obj.isAssignableTo(DubPredRef)); |
| |
| // Function - return type. |
| TypeMirror NumGenRef = NumGen.referent; |
| TypeMirror IntGenRef = IntGen.referent; |
| TypeMirror DubGenRef = DubGen.referent; |
| |
| Expect.isTrue(NumGenRef.isAssignableTo(NumGenRef)); |
| Expect.isTrue(IntGenRef.isAssignableTo(IntGenRef)); |
| Expect.isTrue(DubGenRef.isAssignableTo(DubGenRef)); |
| |
| Expect.isTrue(NumGenRef.isAssignableTo(Func)); |
| Expect.isTrue(NumGenRef.isAssignableTo(IntGenRef)); |
| Expect.isTrue(NumGenRef.isAssignableTo(DubGenRef)); |
| |
| Expect.isTrue(IntGenRef.isAssignableTo(Func)); |
| Expect.isTrue(IntGenRef.isAssignableTo(NumGenRef)); |
| Expect.isFalse(IntGenRef.isAssignableTo(DubGenRef)); |
| |
| Expect.isTrue(DubGenRef.isAssignableTo(Func)); |
| Expect.isTrue(DubGenRef.isAssignableTo(NumGenRef)); |
| Expect.isFalse(DubGenRef.isAssignableTo(IntGenRef)); |
| |
| Expect.isTrue(Func.isAssignableTo(Obj)); |
| Expect.isTrue(NumGenRef.isAssignableTo(Obj)); |
| Expect.isTrue(IntGenRef.isAssignableTo(Obj)); |
| Expect.isTrue(DubGenRef.isAssignableTo(Obj)); |
| Expect.isTrue(Obj.isAssignableTo(Func)); |
| Expect.isTrue(Obj.isAssignableTo(NumGenRef)); |
| Expect.isTrue(Obj.isAssignableTo(IntGenRef)); |
| Expect.isTrue(Obj.isAssignableTo(DubGenRef)); |
| |
| // Function typedef / function. |
| Expect.isTrue(NumPred.isAssignableTo(NumPredRef)); |
| Expect.isTrue(IntPred.isAssignableTo(IntPredRef)); |
| Expect.isTrue(DubPred.isAssignableTo(DubPredRef)); |
| Expect.isTrue(NumPredRef.isAssignableTo(NumPred)); |
| Expect.isTrue(IntPredRef.isAssignableTo(IntPred)); |
| Expect.isTrue(DubPredRef.isAssignableTo(DubPred)); |
| |
| // Function typedef / function. |
| Expect.isTrue(NumGen.isAssignableTo(NumGenRef)); |
| Expect.isTrue(IntGen.isAssignableTo(IntGenRef)); |
| Expect.isTrue(DubGen.isAssignableTo(DubGenRef)); |
| Expect.isTrue(NumGenRef.isAssignableTo(NumGen)); |
| Expect.isTrue(IntGenRef.isAssignableTo(IntGen)); |
| Expect.isTrue(DubGenRef.isAssignableTo(DubGen)); |
| |
| // Type variable. |
| TypeMirror TFromA = |
| (thisLibrary.declarations[#A] as ClassMirror).typeVariables.single; |
| TypeMirror TFromB = |
| (thisLibrary.declarations[#B] as ClassMirror).typeVariables.single; |
| TypeMirror TFromC = |
| (thisLibrary.declarations[#C] as ClassMirror).typeVariables.single; |
| |
| Expect.isTrue(TFromA.isAssignableTo(TFromA)); |
| Expect.isTrue(TFromB.isAssignableTo(TFromB)); |
| Expect.isTrue(TFromC.isAssignableTo(TFromC)); |
| |
| Expect.isFalse(TFromA.isAssignableTo(TFromB)); |
| Expect.isFalse(TFromA.isAssignableTo(TFromC)); |
| Expect.isFalse(TFromB.isAssignableTo(TFromA)); |
| Expect.isFalse(TFromB.isAssignableTo(TFromC)); |
| Expect.isFalse(TFromC.isAssignableTo(TFromA)); |
| Expect.isFalse(TFromC.isAssignableTo(TFromB)); |
| |
| TypeMirror Num = coreLibrary.declarations[#num] as TypeMirror; |
| Expect.isTrue(TFromC.isAssignableTo(Num)); |
| Expect.isTrue(Num.isAssignableTo(TFromC)); |
| |
| // dynamic & void. |
| TypeMirror Dynamic = mirrors.dynamicType; |
| Expect.isTrue(Dynamic.isAssignableTo(Dynamic)); |
| Expect.isTrue(Obj.isAssignableTo(Dynamic)); |
| Expect.isTrue(Super.isAssignableTo(Dynamic)); |
| Expect.isTrue(Sub1.isAssignableTo(Dynamic)); |
| Expect.isTrue(Sub2.isAssignableTo(Dynamic)); |
| Expect.isTrue(NumPred.isAssignableTo(Dynamic)); |
| Expect.isTrue(IntPred.isAssignableTo(Dynamic)); |
| Expect.isTrue(DubPred.isAssignableTo(Dynamic)); |
| Expect.isTrue(NumPredRef.isAssignableTo(Dynamic)); |
| Expect.isTrue(IntPredRef.isAssignableTo(Dynamic)); |
| Expect.isTrue(DubPredRef.isAssignableTo(Dynamic)); |
| Expect.isTrue(NumGen.isAssignableTo(Dynamic)); |
| Expect.isTrue(IntGen.isAssignableTo(Dynamic)); |
| Expect.isTrue(DubGen.isAssignableTo(Dynamic)); |
| Expect.isTrue(NumGenRef.isAssignableTo(Dynamic)); |
| Expect.isTrue(IntGenRef.isAssignableTo(Dynamic)); |
| Expect.isTrue(DubGenRef.isAssignableTo(Dynamic)); |
| Expect.isTrue(TFromA.isAssignableTo(Dynamic)); |
| Expect.isTrue(TFromB.isAssignableTo(Dynamic)); |
| Expect.isTrue(TFromC.isAssignableTo(Dynamic)); |
| Expect.isTrue(Dynamic.isAssignableTo(Obj)); |
| Expect.isTrue(Dynamic.isAssignableTo(Super)); |
| Expect.isTrue(Dynamic.isAssignableTo(Sub1)); |
| Expect.isTrue(Dynamic.isAssignableTo(Sub2)); |
| Expect.isTrue(Dynamic.isAssignableTo(NumPred)); |
| Expect.isTrue(Dynamic.isAssignableTo(IntPred)); |
| Expect.isTrue(Dynamic.isAssignableTo(DubPred)); |
| Expect.isTrue(Dynamic.isAssignableTo(NumPredRef)); |
| Expect.isTrue(Dynamic.isAssignableTo(IntPredRef)); |
| Expect.isTrue(Dynamic.isAssignableTo(DubPredRef)); |
| Expect.isTrue(Dynamic.isAssignableTo(NumGen)); |
| Expect.isTrue(Dynamic.isAssignableTo(IntGen)); |
| Expect.isTrue(Dynamic.isAssignableTo(DubGen)); |
| Expect.isTrue(Dynamic.isAssignableTo(NumGenRef)); |
| Expect.isTrue(Dynamic.isAssignableTo(IntGenRef)); |
| Expect.isTrue(Dynamic.isAssignableTo(DubGenRef)); |
| Expect.isTrue(Dynamic.isAssignableTo(TFromA)); |
| Expect.isTrue(Dynamic.isAssignableTo(TFromB)); |
| Expect.isTrue(Dynamic.isAssignableTo(TFromC)); |
| |
| TypeMirror Void = mirrors.voidType; |
| Expect.isTrue(Void.isAssignableTo(Void)); |
| Expect.isFalse(Obj.isAssignableTo(Void)); |
| Expect.isFalse(Super.isAssignableTo(Void)); |
| Expect.isFalse(Sub1.isAssignableTo(Void)); |
| Expect.isFalse(Sub2.isAssignableTo(Void)); |
| Expect.isFalse(NumPred.isAssignableTo(Void)); |
| Expect.isFalse(IntPred.isAssignableTo(Void)); |
| Expect.isFalse(DubPred.isAssignableTo(Void)); |
| Expect.isFalse(NumPredRef.isAssignableTo(Void)); |
| Expect.isFalse(IntPredRef.isAssignableTo(Void)); |
| Expect.isFalse(DubPredRef.isAssignableTo(Void)); |
| Expect.isFalse(NumGen.isAssignableTo(Void)); |
| Expect.isFalse(IntGen.isAssignableTo(Void)); |
| Expect.isFalse(DubGen.isAssignableTo(Void)); |
| Expect.isFalse(NumGenRef.isAssignableTo(Void)); |
| Expect.isFalse(IntGenRef.isAssignableTo(Void)); |
| Expect.isFalse(DubGenRef.isAssignableTo(Void)); |
| Expect.isFalse(TFromA.isAssignableTo(Void)); |
| Expect.isFalse(TFromB.isAssignableTo(Void)); |
| Expect.isFalse(TFromC.isAssignableTo(Void)); |
| Expect.isFalse(Void.isAssignableTo(Obj)); |
| Expect.isFalse(Void.isAssignableTo(Super)); |
| Expect.isFalse(Void.isAssignableTo(Sub1)); |
| Expect.isFalse(Void.isAssignableTo(Sub2)); |
| Expect.isFalse(Void.isAssignableTo(NumPred)); |
| Expect.isFalse(Void.isAssignableTo(IntPred)); |
| Expect.isFalse(Void.isAssignableTo(DubPred)); |
| Expect.isFalse(Void.isAssignableTo(NumPredRef)); |
| Expect.isFalse(Void.isAssignableTo(IntPredRef)); |
| Expect.isFalse(Void.isAssignableTo(DubPredRef)); |
| Expect.isFalse(Void.isAssignableTo(NumGen)); |
| Expect.isFalse(Void.isAssignableTo(IntGen)); |
| Expect.isFalse(Void.isAssignableTo(DubGen)); |
| Expect.isFalse(Void.isAssignableTo(NumGenRef)); |
| Expect.isFalse(Void.isAssignableTo(IntGenRef)); |
| Expect.isFalse(Void.isAssignableTo(DubGenRef)); |
| Expect.isFalse(Void.isAssignableTo(TFromA)); |
| Expect.isFalse(Void.isAssignableTo(TFromB)); |
| Expect.isFalse(Void.isAssignableTo(TFromC)); |
| |
| Expect.isTrue(Dynamic.isAssignableTo(Void)); |
| Expect.isTrue(Void.isAssignableTo(Dynamic)); |
| } |
| |
| main() { |
| test(currentMirrorSystem()); |
| } |